I. Name of product: XGP36D Centrifugal Barrel Finishing Machine
The centrifugal barrel finishing machine is mainly used for removing burrs and polishing the surface of parts of different kinds of products in such trades and industries as hardware parts, standard parts, instruments and apparatus, watches and clocks, bicycles, sewing machines, hydraulic and pneumatic devices, bearings, automobiles, electric appliances, plastics, ceramics, non-ferrous metals and precious handicrafts. Especially it gives the excellent result for polish processing of irregularly shaped parts. After processing, not only there is no damage to the original shape or precision of dimensions of the processed parts, but also the precision of the roughness of the processed parts can be increased. This type of polisher is suitable for the surface polishing of large quantity and batch of small-sized parts.
III. Main Technical Parameter
|Nominal volume of the vessel||4X15L|
|Revolutions of the revolver:||0-160 RPM|
|Radius of revolving||283mm|
|Thickness of the lining||8mm|
IV. Main structure and working principle
As is seen in Fig1, the machine model XGP40 mainly consists of motor 6, the revolving disc 1 performing the planet transmission, hexagonal rolling vessels 2 lined with detachable polyurethane lining, the belt pulley system 3 driving the revolving disc, the synchronous arc toothed belt transmitting system4 driving the vessel to spin, the operation system and the safety system.
The main working principle is shown in Fig2. Four hexagonal barrels are installed on the revolving disc with equal intervals between them, the vessels revolve with the revolving disc and at the same time rotate around their own axes (in opposite direction of the revolution) driven by the synchronous toothed belt transmission system. The planet motion of the rolling vessels keeps their contents to the inner walls and on the side of the external periphery of the revolving disc due to the centrifugal force and forms a flowing layer on the surface as is shown in Fig2. In this flowing layer a relative movement between the abrasives and the work pieces is produced, giving very fine cutting and pressing to the surface of the pieces thus polishing the surface of the pieces.
V. Handling, installing and adjusting
1. Handling: on the basement of the machine there are four ears, suspend a sling on them and the machine can be lifted.
Note: The two lifting bolts on the machine lid can only be used for removing the lid, never use them for lifting the machine.
2. Installing: The machine can be installed on the level concrete base without using fang bolt. The levelness can be checked by pouring water into the rolling vessel or by means of a level-meter.
3.1 The power cable from the mains is connected to the switch in the switch box on the right side. The basement and the panel must be earthed.
3.2 Check whether any of the securing bolts on the revolving parts get loose.
3.3 Confirm the lid of the rolling vessel is tightly closed and the vessel is pressed fast in the frame.
3.4 Check whether the direction of the revolution is the same as that shown by the arrow on the case of the machine.
3.5 The powerful centrifugal force will be produced during the operation and the revolving parts may get loose or tilted, so the machine must run idle for 30 minutes, if there are unusual sounds, the machine should be checked and adjusted to get stable and reliable operation.
VI. Operation and use
1. The opening and closing of the door: When the door is opened upward, the machine will not run because of the protection of the limit switch, it can only perform fine motion.
Note: (1). When closing the door, be careful to prevent the hand from being squeezed.
(2). Never touch the panel with a wet hand.
2. The stopping of the rolling vessel: When the vessel is charged and discharged, it should be stopped in a certain fixed position, which is controlled by a electromagnetic brake motor.
3. Charging and installing the rolling vessels :
3.1 Charging the vessels: As is shown in Fig3, unscrew the fastening nuts and remove the lid, put certain quantity of work pieces, abrasives, water and grinding compound, then cover the vessel with the lid and screw the fastening nuts again.
3.2 Taking out and installing the rolling vessels: As is shown in Fig.4, unscrew the fastening bolts, take out the securing plate, the vessel can be taken out by holding the two handles on it. After charging and screwing the lid nuts, put the vessel into the vessel frame, insert the ends of the securing plate into the square holes (note: both ends must be inserted), then screw the fastening bolts.
4. Putting in the work pieces:
4.1 The total quantity of the work pieces, abrasives, grinding compound and water is 11 kg. accounting for 40—50% the volume of the vessel.
4.2 A standard period of working time is in principle about one hour. If it is necessary, the work can be continued on the condition that the temperature inside the vessel is not above 80ºC and after working for an hour the water and the grinding compound should be changed before the operation can be continued.
4.3 The weight of material put in each vessel should be equal, for the weights exceeding the limitation or unequal weights among the vessels will cause imbalance leading to danger that should be absolutely avoided. If the machine runs without the vessels installed in the frame, imbalance and danger will also occur which should equally be absolutely avoided
4.4 If impurities get between the lid and the edge of the vessel during charge, the vessel cannot be sealed well, causing splashing during operation, so the impurities on the lid and the vessel must be washed off.
5.1 Preparation for operation and checking:
Charge the vessels and seal them with the lids, operate the machine in fine motion for about one minute with the door completely open, during this process check the machine for the following troubles and remove them.
5.2.1 Starting: After completing the checking before operation, close the protection door, set the working time by means of the general timer and start the machine.
Note: (1). When the protection door is open, the machine will not start due to the protective function of the limit switch even if the start switch is pressed.
(2). Operate the machine in fine motion by pressing the fine motion operation button.
5.2.2 Stopping the machine: When the machine works till the set time the motor automatically stops and the signal light goes out. For emergency stop press the stop button, the motor will stop.
6. Setting the working time:
Time setting should be carried out when the rolling vessels stop working.
The working time is set by means of a timer. Within the total set time half of it is for the clockwise rotation and the other half for counter clockwise rotation. The longest time set by the timer is one hour. Due to a powerful polishing ability the standard polishing time for the machine is 30 minutes, with the longest polishing time set at one hour.
7. Setting the revolutions of the revolving disc:
The machine is equipped with a frequency controller of motor speed, so the chief motor can perform staples frequency nodulation through the frequency changer within a certain range, allowing the revolving disc a speed range of 0—180r/min.
VII. Maintenance, repair and removal of troubles
1.1 The instructions given in the operation manual should be strictly followed during operation.
1.2 During operation, the temperature inside the rolling vessel cannot exceed 80ºC, nor can oil, grease, corrosive substances and sharp work pieces be put in the vessel, for these will reduce the useful life of the lining, so the work pieces must be washed to remove the oil impurities before being processed.
1.3 Examine regularly whether the connected and fastened parts get loose.
1.4 Lubricate regularly the bearings on the revolving parts.
1.5 Keep the machine clean.
Table for spots to be lubricated and requirements
The above-mentioned lubrication and its intervals are for reference only, and the temperature rise of the bearings and the noises should be checked irregularly according to the operation conditions, place of installation and the environmental circumstances and the lubrication should be dealt with on the merits of each case.
Maintenance and removal of trouble:
Pay attention to the following aspects during the use of the planet Centrifugal Barrel Finishing machine model XGP40.
2.1 Check the tension of the V belt that may be elongated or worn out in the course of operation, getting loose, so the belt tension should be checked and adjusted regularly.
2.2 If the vessel cannot be sealed tightly because the lining near the vessel mouth is worn out or aged, or the quality of processing is influenced by the worn out lining, then the vessel should be relined.
2.3 If the operation causes higher noises, check whether the fastened parts get loose and whether the revolving parts are properly lubricated.
2.4 Unequal charge for the four rolling vessels will cause vibration of the machine, if the charges exceed the limitation, the revolving disc will stop rotating.
2.5 The bearings worn out after long time of operation must be changed in time.
VIII. Warranty period
The machine is warranted against failure in operation caused by faulty workmanship and packing for a period of 12 months from the date of supply. All the warranties are dependent on the machine being transported, kept, installed, adjusted, operated and maintained in accordance with the instructions given in the manual.
Synchronous toothed belt 2
XI. Electric apparatus
(1) Dimensions of Electric controlling box: 360×180×410
(2) Dimensions of penal: 300×200 (length×width)
(3) Standard of the cable: 6mm²×4
(4) Power: Power consumption 2.2KW
Input power AC380V 3phases 50HZ
Controlling power source DC24V